Structure IDs, Names and Descriptions
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Overview
Identifiable structures are identified by an ID.
Maintainable and Nameable structures are also Identifiable and therefore must have an ID but in addition have a Name, and an optional Description.
ID
An ID is mandatory for Identifiable structures and serves as a unique reference as part of each structure's URN.
The ID given to an Identifiable is restricted to a range of allowble characters:
| Allowable Content | Example |
|---|---|
| Alpha Numeric | A-Z a-z 0-9 |
| Dollar | $ |
| Hyphen | - |
| Underscore | _ |
The URN is derived from properties of the structure, such as the type of structure, the Agency Id, Id, and Version. As such the URN is not user supplied, but system generated.
